Zero problems here with the 331.20 drivers since release. I am using it on two machines, the gentoo one with custom 3.12 kernel is perfect. The debian machine I had to roll back the kernel to the default 3.2 otherwise I got Xorg segfaults using the 3.10 kernel.

EDIT: Also the 304 drivers have issues with Composite + XFT fonts, which is fixed in 331.20 if that is relevant to you._________________CFLAGS="-OmgWTFR1CE --fun-lol-loops --march=asmx86go"

if use kernel_linux && kernel_is ge 3 13 ; then
ewarn "Gentoo supports kernels which are supported by NVIDIA"
ewarn "which are limited to the following kernels:"
ewarn "<sys-kernel/gentoo-sources-3.13"
ewarn "<sys-kernel/vanilla-sources-3.13"

In addition to this... its precisely the release that nividia recommends for my card... which is... not old._________________

Thanks aCOSwt.
Just emerged it because upgrading world today wanted me to downgrade to 325.15 which won't run on kenel 3.12.2.
Gerard._________________To install Gentoo I use sysrescuecd.Based on Gentoo,has firefox to browse Gentoo docs and mc to browse (and edit) files.
The same disk can be used for 32 and 64 bit installs.
You can follow the Handbook verbatim.
http://www.sysresccd.org/Download

Hey... just rechecked... it was 304.1160 a couple of days ago... it just jumped to 319.76
Not in portage yet... and don't really know if I will swap considering all the problems I am experiencing with > 319.49_________________

331.20 (Patched to work with Kernel 3.12) -> Sometimes short high CPU usage peaks from X, no other problems!
325.15 (Patched to work with Kernel 3.12) -> High CPU load from X, "Zombi" processes, strange system behavior, unexpected delays from time to time
319.76 (unpatched, not available via portage) -> High CPU load, drawing errors from time to time, unexpected delays from time to time, 2x application crashed

Can indeed confirm that those config variables cause a difference, the new workaround is thus to either downgrade to ~x11-drivers/nvidia-drivers-325.25 or alternatively set CONFIG_BSD_PROCESS_ACCT=n CONFIG_BSD_PROCESS_ACCT_V3=n in the kernel .config; I'm now trying to see if a specific kernel version introduced this.

Hey... just rechecked... it was 304.1160 a couple of days ago... it just jumped to 319.76
Not in portage yet... and don't really know if I will swap considering all the problems I am experiencing with > 319.49